情态动词总结归纳

情态动词用法归纳∆情态动词有can(could),may(might),must,haveto,shall(should),will(would),dare(dared),need(needed),等。∆情态动词无人称和数的变化；不能单独使用，必须与其后的动词原形构成谓语。∆一、can,could∆1)表示能力（体力、知识、技能）。∆Canyouliftthisheavybox?（体力）∆Marycanspeakthreelanguages.（知识）Canyouskate?（技能）∆2)表示请求和允许。∆CanIgonow?∆Yes,youcan./No,youcan’t.∆3)表示客观可能性（客观原因形成的能力）。∆They’vechangedthetimetable,sowecangobybusinstead.∆Thishallcanhold500peopleatleast.∆4)表示推测（惊讶、怀疑、不相信的态度），用于疑问句、否定句和感叹句中。∆Canthisbetrue?∆Thiscan’tbedonebyhim.∆Howcanthisbetrue?∆二、may,might∆1)表示请求和允许。may语气更委婉，∆否定回答时可用can’t或mustn’t。∆MayIsmokeinthisroom?No,youmustn’t.May/MightItakethisbookoutoftheroom?∆Yes,youcan.(No,youcan’t/mustn’t.)∆2）用于祈使句，表示祝愿。∆Mayyousucceed!∆3)表示推测、可能性（不用于疑问句）。Hemaybeverybusynow.∆三、must1)表示必须、必要。∆Youmustcomeintime.∆在回答引出的问句时，如果是否定的，不能用mustn’t（禁止，不准），而用needn’t（不必）.∆Mustwehandinourexercisebookstoday?∆Yes,youmust.∆No,youyouneedn’t.∆3)表示推测、可能性（只用于肯定的陈述句）∆1．You’reTom’sgoodfriend,soyoumustknowwhathelikesbest.∆2．Yourmothermustbewaitingforyounow.∆一、选用情态动词can,can’t,must填空。1．“Iuseyourrubber,Bill?”“Sorry,Idon’thaveone.AskMary.Shemay(可能)haveone.2．“yousayitinEnglish?”“Sorry,I____.IsayitinEnglish?No,youneedn’t.YousayitinChinese.∆3.“_________________Ilistentothemusic?”Yes,you______________.Butyou______________waitaminute.∆4.Youcallmewithyourmobilephoneontheplane.∆二、选择填空。∆()1.—MayItakethisbookout?—No,you___.∆A.can'tB.maynotC.needn'tD.aren't∆()2.“Idohomeworkfirst?”“Yes,you.”∆A.Must;mustB.Can;are∆C.Must;canD.Am;can∆()3.—MayIchangethefilmhere?∆—No,youdothatinthesunshine.∆A.needn’tB.don’thavetoC.can’tD.maynot∆(()4.—___Itakethenewspaperaway?∆—No,youmustn't.You____readitonlyhere.∆A.Must;canB.May;canC.Need;mustD.Must;must∆()5.—______Itakemycatwithmeonthetrain?∆No,you______.∆A.Could,won’tB.Must,mustn’t∆C.May,mustn’tD.Can,needn’t∆()6.You______showyourpassattheentranceunlesstheguardasksyouforit.∆A.mustn’tB.can’tC.needn’tD.won’t∆()7.You______watchTV,butyou_____finishyourhomeworkfirst.∆A.must,canB.need,canC.may,mustD.can,may∆()8.You’dbettertakeamapwithyou,oryou____loseyourway.∆A.canB.mustC.shouldD.may∆三、翻译下列句子。∆1)你可以把自行车放在屋子的后面。∆2)我必须现在打扫教室吗？是的。∆3)我可以吃些苹果吗？当然可以。∆4)必须现在就做家庭作业吗？不，不必了。你可以带回家做。∆